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| 阳离子和两性混合表面活性剂为模板合成三维六方介孔二氧化硅 | |
| 引用本文： | 张剑波,杨宇翔,郑九丽,袁宏明,曹 磊,陈 诚.阳离子和两性混合表面活性剂为模板合成三维六方介孔二氧化硅[J].无机化学学报,2011,27(9):1817-1829. |
| 作者姓名： | 张剑波 杨宇翔 郑九丽 袁宏明 曹 磊 陈 诚 |
| 作者单位： | 1. 北京大学环境科学与工程学院,北京10087 2. 华东理工大学化学与分子工程学院,上海,200237 3. 无机合成与制备化学国家重点实验室,吉林大学化学学院,长春 130012 |
| 基金项目： | support from National Natural Science Foundation of China(Grant No.20971043,No.20577010)~~ |
| 摘 要： | 用阳离子表面活性剂CnTAB(n=12,14,16,18)和两性生物表面活性剂SDG以8∶2的摩尔比混合作为模板剂,在酸性条件下晶化,碱性条件下老化合成了三维有序介孔二氧化硅。合成的产物用XRD、SEM、TEM和N2吸附进行表征。结果表明,在不同链长的表面活性剂CnTAB(n=12,14,16,18)中,C14TAB与SDG混合所得样品C14DG的有序度最好。而C16TAB和C18TAB与SDG混合所得样品的孔径约为9 nm。两性表面活性剂SDG对产物的形貌和三维六方结构都有影响。 |
| 关 键 词： | 介孔二氧化硅 两性表面活性剂SDG 阳离子表面活性剂CnTMBr 三维六方 |
Synthesis of Mesoporous Silica with a Three-Dimensional Hexagonal Ordered Structure Using Cationic and Amphoteric Mixed Surfactants |
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| ZHANG Jian-Bo,YANG Yu-Xiang,ZHENG Jiu-Li,YUAN Hong-Ming,CAO Lei and CHEN Cheng.Synthesis of Mesoporous Silica with a Three-Dimensional Hexagonal Ordered Structure Using Cationic and Amphoteric Mixed Surfactants[J].Chinese Journal of Inorganic Chemistry,2011,27(9):1817-1829. | |
| Authors: | ZHANG Jian-Bo YANG Yu-Xiang ZHENG Jiu-Li YUAN Hong-Ming CAO Lei and CHEN Cheng |
| Institution: | Department of Environmental Sciences, Peking University, Beijing 100871, China,School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China,School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China,State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China,School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China and School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China |
| Abstract: | Ordered mesoporous silica with a 3D hexagonal structure was synthesized using mixed cationic CnTMBr (n=12,14,16,18) and amphoteric biological surfactants sodium N-dodecyl glycine (SDG) at a molar ratio of 8:2.Synthesis proceeded with hydrolysis and condensation of tetraethyl orthosilicate (TEOS) under acidic conditions,followed by aging in an alkaline medium.The synthesized products were characterized using X-ray diffraction,scanning electron microscopy,transmission electron microscopy,and nitrogen sorption analysis.Mesoporous silica with pore diameter of about 9 nm was obtained using C16TMBr or C18TMBr and SDG,as mixed templates.The presence of the amphoteric biological surfactant SDG was responsible for formation of the 3D hexagonal structure. |
| Keywords: | mesoporous silica amphoteric surfactants SDG cationic CnTMBr 3D hexagonal structure |
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